IE 8 Java Applet Crashing

Hi,

We are using IE 7 and currently we have upgraded to IE 8. But when trying the applications in IE 8, we are facing serious of problems like slowness, page crashing and Java applets crashing. The same pages is working weel on IE 7 but in IE 8 these pages and Java applets are crashing and showing script error as "Object doesn't support this method" for applets.